Nutrient groove of the ilium, a subtle but important forensic radiographic marker in the identification of victims of severe trauma

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Abstract
A variety of skeletal characteristics pertaining to the bony pelvis have, over the years, been of assistance as forensic markers, but the importance of the nutrient groove of the ilium has not been appreciated. During aircraft accident investigations we compared premortem anteroposterior abdominal radiographs with postmortem specimen radiographs of the ilium, with particular attention directed to the nutrient groove of the ilium. This marker can assume several configurations (i.e., parallel, V-shaped and Y-shaped) and is situated a few centimeters lateral to the sacroiliac joint. Left/right asymmetry, or absence of the nutrient grove on one side of the pelvis are possible variants within an individual. The purpose of this report is to emphasize the previously unrecognized importance of the nutrient groove of the ilium as a useful forensic radiographic marker.